Roots pose a serious threat to foundations, driveways and sidewalks, or underground utilities.

Not so obvious reasons to remove a tree

Structural problems

Bad crotches with included bark or repeated cracks

Cracks on the main trunk or main leaders

The tree is just too big for the location and poses challenges to safety if it falls or drops branches

New construction--the tree will either be mortally damaged by equipment and disturbance to the ground under it, or is directly in the way of construction. Consider tree removal before the construction rather than after.

Major diseases or insect infestations that will likely kill the tree soon, or spread disease to other trees.

Interior decay

Leaning in the wrong direction

Crowding among trees - prioritize which trees are healthiest and worth keeping